topic IMX6q GPU driver, galcore does not load in i.MX Processors

IMX6q GPU driver, galcore does not load

victhorf — Mon, 17 Jun 2013 01:33:05 GMT

I have been trying to enable 3D acceleration on an i.MX6Q SABRE Lite board using a custom kernel, built from Freescale's kernel tree, rel_imx_3.0.35_4.0.0 release . Unfortunately, the galcore module doesn't load:

galcore: probe of galcore.0 failed with error -22

Output of uname -a:

Linux alarm 3.0.35-02864-g54750ff #21 SMP PREEMPT Sun Jun 16 21:09:43 BRT 2013 armv7l GNU/Linux

Kernel command line:

video=mxcfb0:dev=hdmi,1280x720M@60,if=RGB24 video=mxcfb1:off video=mxcfb2:off fbmem=28M console=ttymxc1,115200 vmalloc=192M root=/dev/mmcblk0p1 rootwait consoleblank=0 enable_wait_mode=off

dmesg log and kernel configuration are attached.

Original Attachment has been moved to: dmesg.log.zip

Original Attachment has been moved to: config.zip

Re: IMX6q GPU driver, galcore does not load

karina_valencia — Fri, 21 Jun 2013 16:05:30 GMT

Re: IMX6q GPU driver, galcore does not load

PrabhuSundararaj Jun 18, 2013 2:59 PM (in response to imxcommunityscout)

The galcore is a built-in module in the BSP release. If you are building custom kernel and decided to load the modules, makesure the modules are correctly installed. Does the prebuilt kernel works for you?

Re: IMX6q GPU driver, galcore does not load

victhorf — Sat, 22 Jun 2013 15:12:22 GMT

Yes, prebuilt kernel works.

Re: IMX6q GPU driver, galcore does not load

victhorf — Sun, 30 Jun 2013 15:38:14 GMT

Is Freescale planning to release hardfloat binaries for the GPU driver? I wasn't able to use these drivers: https://community.freescale.com/message/328221 on a Linaro 12.04 hardfloat build. The GPU does work as expected on a softfloat build (Freescale release 4.0.0). The hardfloat build fails to start Xorg with the following errors:

[ 17.635] (EE) VIVANTE(0): internal error: GPU Ctx Init Failed

[ 17.635] (EE) VIVANTE(0): internal error: initExaLayer failed in VivScreenInit()

On both cases the same kernel was used, built using LTIB, default settings.

Re: IMX6q GPU driver, galcore does not load

mtx512 — Sun, 30 Jun 2013 16:55:53 GMT

The Timesys hardfloat binaries for BSP 1.1.0 work fine with Linaro, haven't tried the 4.0.0 binaries.